From: Obeida Shamoun oshmoun100@googlemail.com
[ Upstream commit cdfd4c689e2a52c313b35ddfc1852ff274f91acb ]
WLED3_SINK_REG_SYNC is, as the name implies, a sink register offset. Therefore, use the sink address as base instead of the ctrl address.
This fixes the sync toggle on wled4, which can be observed by the fact that adjusting brightness now works.
It has no effect on wled3 because sink and ctrl base addresses are the same. This allows adjusting the brightness without having to disable then reenable the module.
Signed-off-by: Obeida Shamoun oshmoun100@googlemail.com Signed-off-by: Konrad Dybcio konrad.dybcio@somainline.org Signed-off-by: Marijn Suijten marijn.suijten@somainline.org Reviewed-by: Daniel Thompson daniel.thompson@linaro.org Acked-by: Kiran Gunda kgunda@codeaurora.org Signed-off-by: Lee Jones lee.jones@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/video/backlight/qcom-wled.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c index 091f07e7c145..fc8b443d10fd 100644 --- a/drivers/video/backlight/qcom-wled.c +++ b/drivers/video/backlight/qcom-wled.c @@ -336,13 +336,13 @@ static int wled3_sync_toggle(struct wled *wled) unsigned int mask = GENMASK(wled->max_string_count - 1, 0);
rc = regmap_update_bits(wled->regmap, - wled->ctrl_addr + WLED3_SINK_REG_SYNC, + wled->sink_addr + WLED3_SINK_REG_SYNC, mask, mask); if (rc < 0) return rc;
rc = regmap_update_bits(wled->regmap, - wled->ctrl_addr + WLED3_SINK_REG_SYNC, + wled->sink_addr + WLED3_SINK_REG_SYNC, mask, WLED3_SINK_REG_SYNC_CLEAR);
return rc;